Pavilion will be an experience best played without knowing too much about what lies ahead.

The term "fourth-person" describes the way you interact with the main character. Basically, the character is not your avatar and you are not in control of him. Instead, you have to find different ways — mostly through environmental interaction — to guide, influence or even force him to explore and fulfill the purpose of the world. This indirect control is what we refer to when we say fourth-person.